Wheel cap



FIG. 1 is a front perspective view of a wheel cap showing my new design;

FIG. 2 is a front view thereof, in enlarged scale;

FIG. 3 is a back view thereof, in enlarged scale;

FIG. 4 is a right side view thereof, in enlarged scale; and,

FIG. 5 is a left side view thereof, in enlarged scale.

The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a wheel cap, as shown and described. 